Im sure this has been asked before i juat can't find where it has been - Maybe need to work on how to search Lemmy better. But... Id like to eventually self host some sevices that require external access. While I have IpV6 addresses my IPV4 is dynamic. Whats the best free way to be able to point some domains/ subdomains I have to my external dynamic IP and keep it updated. Im running OpenWrt on my router. - So possibly should be posting there. Free Dyndns services seem to be a bit crap. Do I need to pay for a VPS? (seems to defeat the point of self hosting)

Just a bit or a wandering mind on my part but one of the issues in the back of my mind is what happens to whatever self hosting I setup if something happens to me. Ideally I'd like to be able to know that in case of emergency Id be able rely on a good friend or two to keep things going. My thought was that would require some common design patterns/ processes and standardisation. I also have these thoughts because eventually Id like to support other family members with self hosted services at their places. Standardising hardware, configurations etc makes that much simpler. How have others approached this?